What is Energy?
Energy Conversions
Conservation of Energy
Energy Resources
Types of Energy
100
The ability to do work
What is energy?
100
The energy that is stored in a rubber band.
What is elastic potential energy?
100
The force that opposes motion between two surfaces that are touching
What is friction?
100
A resource that cannot be replaced or are replaced much more slowly than they are used
What is nonrenewable resource?
100
The kinetic energy that is due to the random motion of the particles that makes up an object
What is thermal energy?
200
energy that is dependent on velocity and mass
What is Kinetic Energy?
200
Simply a change from one form of energy to another
What is energy conversion?
200
A group of objects that transfer energy ONLY to each other
What is a closed system?
200
A natural resource that can be converted into other forms of energy in order to do useful work
What is an energy resource?
200
The energy of moving electrons
What is electrical energy?
300
Energy of an object because of its position (stored energy)
What is potential energy?
300
The process that a plant uses to convert CO2 and H2O into sugar and O2
What is photosynthesis?
300
The type of energy that some mechanical energy is turned into because of friction
What is thermal energy?
300
Energy resources that formed from buried remains of plants and animals
What are fossil fuels?
300
Energy that comes from tiny amounts of matter - comes from changes in the nucleus of an atom
What is nuclear power?
400
This is where potential energy is the greatest in a roller coaster
What is at top of the first hill?
400
The types of energy that electrical energy is converted to in a hair dryer
What are thermal and sound energy?
400
Means that energy cannot be created or destroyed
What is The Law of Conservation of Energy?
400
Naturally replaced more quickly than they are used (wind, water, solar)
What are renewable resources?
400
Energy that is produced by the vibrations of electrically charged particles - don't have to be carried through matter
What is light energy?
500
The total energy of motion and position of an object (kinetic + potential)
What is mechanical energy?
500
Can make work easier by changing the size or direction (or both) of the force needed to do the work
What is a machine?
500
The comparison of the amount of energy before a conversion with the amount of energy after a conversion
What is energy efficiency?
500
Thermal energy caused by the heating of Earth's crust
What is geothermal energy?
500
Energy of a compound that changes as its atoms are rearranged
What is chemical energy?
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